At 10:58 PM 7/18/2010, Jeremy Chadwick wrote:
I re-worked this out myself based on the OP's dmesg. It's confusing
because there's literally 6 different storage controllers on a single
machine:
Its a big storage server. Some files dont require fast or frequent
access, others do. The disks on the sata controllers are used with
zfs for the large files that require infrequent access for example.
(probe16:arcmsr0:0:16:0): inquiry data fails comparison at DV1 step
Thats been a normal message for Areca controllers for some time on AMD64
So one thing of interest is that the Areca and 3ware controllers are
sharing an IRQ. If you do extensive bidirectional I/O between disks on
the arcmsr0 and twa0 controllers at the same time (e.g. read from
arcmsr0 which writes to twa0, and read from twa0 which writes to
arcmsr0), do you see this problem?
Its never been an issue in the past 2yrs. The same box was RELENG_7
for some time and then in the past 3 months updated to RELENG_8.
vmstat -i output would help here,
except that it's going to show the rate as a total (for both
controllers). I don't know if a way to get more granular output.
pciconf -lvc output might also help (to see if the controllers are using
MSI or not); only interested in the arcmsr0, twa0, and ahci1 entries.
interrupt total rate
irq1: atkbd0 6 0
irq4: uart0 1049 0
irq18: arcmsr0 twa* 5221148 151
irq19: fwohci0+ 151346 4
irq23: uhci3 ehci1 2 0
cpu0: timer 67544881 1962
irq256: em0 57430641 1668
irq257: ale0 3262365 94
irq258: ahci1 10406081 302
cpu1: timer 67539701 1962
cpu2: timer 67168885 1951
cpu3: timer 67169530 1951
Total 345895635 10049
arcm...@pci0:3:14:0: class=0x010400 card=0x121017d3
chip=0x121017d3 rev=0x00 hdr=0x00
vendor = 'Areca Technology Corporation'
device = 'ARC-1210 4-Port PCIe to SATA RAID Controller'
class = mass storage
subclass = RAID
cap 01[c0] = powerspec 2 supports D0 D1 D3 current D0
cap 05[d0] = MSI supports 2 messages, 64 bit
cap 07[e0] = PCI-X 64-bit supports 133MHz, 1024 burst read, 4
split transactions
si...@pci0:8:0:0: class=0x010400 card=0x71321095
chip=0x31321095 rev=0x01 hdr=0x00
vendor = 'Silicon Image Inc (Was: CMD Technology Inc)'
device = 'PCI Express (1x) to 2 Port SATA300 (SiI 3132)'
class = mass storage
subclass = RAID
cap 01[54] = powerspec 2 supports D0 D1 D2 D3 current D0
cap 05[5c] = MSI supports 1 message, 64 bit
cap 10[70] = PCI-Express 1 legacy endpoint max data 128(1024) link x1(x1)
t...@pci0:7:0:0: class=0x010400 card=0x100413c1
chip=0x100413c1 rev=0x01 hdr=0x00
vendor = '3ware Inc'
device = 'PCI-Express SATA2 Raid Controller (9650SE Series)'
class = mass storage
subclass = RAID
cap 01[40] = powerspec 2 supports D0 D1 D2 D3 current D0
cap 05[50] = MSI supports 32 messages, 64 bit
cap 10[70] = PCI-Express 1 legacy endpoint max data 128(512) link x1(x8)
ah...@pci0:5:0:0: class=0x010601 card=0x824f1043
chip=0x2361197b rev=0x02 hdr=0x00
vendor = 'JMicron Technology Corp.'
device = 'PCI Express to SATA II and PATA Host Controller (JMB363)'
class = mass storage
subclass = SATA
cap 01[68] = powerspec 2 supports D0 D3 current D0
cap 10[50] = PCI-Express 1 legacy endpoint IRQ 2 max data
128(128) link x1(x1)
ah...@pci0:0:31:2: class=0x010601 card=0x82d41043
chip=0x3a228086 rev=0x00 hdr=0x00
vendor = 'Intel Corporation'
device = '6 port SATA AHCI Controller'
class = mass storage
subclass = SATA
cap 05[80] = MSI supports 16 messages enabled with 1 message
cap 01[70] = powerspec 3 supports D0 D3 current D0
cap 12[a8] = SATA Index-Data Pair
cap 09[b0] = vendor (length 6) Intel cap 2 version 0
--
| Jeremy Chadwick j...@parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, m...@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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